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Problemes De Reduction Et Devolution De Loxygene Sur Des Materiaux De Type Phtalocyanine
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Book Synopsis The Technological System by : Jacques Ellul
Download or read book The Technological System written by Jacques Ellul and published by Wipf and Stock Publishers. This book was released on 2018-06-11 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some 20 years after writing The Technological Society, Jacques Ellul realized how the totalistic dimensions of our modern technological milieu required an additional treatment of the topic. Writing amidst the rise of books in the 1970s on pollution, over-population, and environmental degradation, Ellul found it necessary, once again, to write about the global presence of technology and its far-reaching effects. The Technological System represents a new stage in Ellul’s research. Previously he studied technological society as such; in this book he approaches the topic from a systems perspective wherein he identifies the characteristics of technological phenomena and technological progress in light of system theory. This leads to an entirely new approach to what constitutes the most important event of our society which has decisive bearing on the future of our world. Ellul’s analysis touches on all aspects of modern life, not just those of a scientific or technological order. In the end, readers are compelled to formulate their own opinions and make their own decisions regarding the way a technique-based value system affects every level of human life.
Book Synopsis Chemical Physics of Intercalation by : A.P. Legrand
Download or read book Chemical Physics of Intercalation written by A.P. Legrand and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conjugated polymers suoh as polyaoetylene (CH)x polyphenylene (C6H4)x' poly thiophene (C4H2S)x' etc., which are insulators in their pristine state, can be brought to the metallic state after "doping" with ohemioal speoies whioh oan be either eleotron donors or I aoceptors. . This doping prooess involves a oharge transfer between the dopant moleoule and the polymer ohain whioh are then supposed to be spatially olose to each other. It follows that the meohanism of doping must be oonsidered as an aotual interoalation process, which will greatly affeot the struotural oharacteristios of the starting material, as well as its morphology, as has been observed during the 2 intercalation of graphite and layered compounds . In parallel with these modifioations, the band struoture of the system changes yielding a new set of eleotronio properties. It is evident therefore that the struotural and eleotronio properties are intimately related, and must be studied simultaneously in the same system to give reliable information. A great number of studies have been devoted to the structural and electronic properties of conjugated polymers after a chemical or 2 electrochemical doping process . Most of these concern the properties of the system for a given dopant concentration. With this approach a universal pioture of the polymer/dopant system is very diffioult to obtain, as a comparison between different experiments is very hazardous. On the other hand, only a small number of measurements have been performed during the continuous electroohemioal doping of various polymers.
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Book Synopsis Chemistry in Action: Making Molecular Movies with Ultrafast Electron Diffraction and Data Science by : Lai Chung Liu
Download or read book Chemistry in Action: Making Molecular Movies with Ultrafast Electron Diffraction and Data Science written by Lai Chung Liu and published by Springer Nature. This book was released on 2020-09-10 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis provides the necessary experimental and analytical tools to unambiguously observe the atomically resolved chemical reactions. A great challenge of modern science has been to directly observe atomic motions during structural transitions, and while this was first achieved through a major advance in electron source brightness, the information content was still limited and new methods for image reconstruction using femtosecond electron diffraction methods were needed. One particular challenge lay in reconciling the innumerable possible nuclear configurations with the observation of chemical reaction mechanisms that reproducibly give the same kind of chemistry for large classes of molecules. The author shows that there is a simple solution that occurs during barrier crossing in which the highly anharmonic potential at that point in nuclear rearrangements couples high- and low-frequency vibrational modes to give highly localized nuclear motions, reducing hundreds of potential degrees of freedom to just a few key modes. Specific examples are given in this thesis, including two photoinduced phase transitions in an organic system, a ring closure reaction, and two direct observations of nuclear reorganization driven by spin transitions. The emerging field of structural dynamics promises to change the way we think about the physics of chemistry and this thesis provides tools to make it happen.
Book Synopsis Metal Soaps in Art by : Francesca Casadio
Download or read book Metal Soaps in Art written by Francesca Casadio and published by Springer. This book was released on 2019-03-23 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This go-to reference work surveys the current state of knowledge in the field of metal soap-related degradation phenomena in art works. It contains detailed descriptions and images of the different phenomena and addresses the practical aspects of soap formation, preventive conservation, and treatment. The occurrence of metal soaps is one of the defining issues in the conservation of painted surfaces, and one that presently leaves innumerable open questions. It is estimated that around 70% of paintings in museum collections are affected by some form of metal soap-related degradation. In recent years, significant advances have been made in the detection and characterization of these compounds through interdisciplinary approaches including conventional spectroscopy and microscopy as well as emerging synchrotron-based techniques. This book for the first time captures a panoramic overview of the state of knowledge of metal soaps related to both scientific analysis and implications for conservation and treatment. It also critically examines open questions. The book is accessible to audiences with varied backgrounds (e.g. conservators, students of conservation science) while simultaneously presenting the technical details indispensable for academics and researchers active in this field.
Book Synopsis Nucleating Agents by : Stuart Fairgrieve
Download or read book Nucleating Agents written by Stuart Fairgrieve and published by iSmithers Rapra Publishing. This book was released on 2007-11 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: A very important factor in obtaining optimised physical properties from a semi-crystalline polymer is the size of the crystalline structures present in the material, and this crucially depends on the initiation process of crystallisation of the polymer from the melt - nucleation. This review provides information on the development of materials and methods for influencing the nucleation of polymer crystallisation in commercial processing by means of addition of low levels of adjuvants specifically selected for this purpose.
Book Synopsis Biodegradation of Azo Dyes by : Hatice Atacag Erkurt
Download or read book Biodegradation of Azo Dyes written by Hatice Atacag Erkurt and published by Springer Science & Business Media. This book was released on 2010-04-21 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Azo dyes play an important role as coloring agents in the textile, food, and pharmaceutical industry. Due to the toxicity, mutagenicity and carcinogenicity of azo dyes and their breakdown products, their removal from industrial wastewaters has been an urgent challenge. Promising and cost-effective methods are based on their biodegradation, which is treated in this volume. The topics presented by experts in the field include: the classification of azo dyes; toxicity caused by azo dyes; aerobic and anaerobic azo dye biodegradation mechanisms; the role of bacteria, fungi, algae and their enzymes in biodegradation; the impact of redox mediators on azo dye reduction; the integration of biological with physical and chemical processes; the biotransformation of aromatic amines; reactor modelling for azo dye conversion; the biodegradation of azo dyes by immobilized bacteria and fungi; and factors affecting the complete mineralization of azo dyes.
Author :Supramaniam Srinivasan Publisher :Springer Science & Business Media ISBN 13 :0387251162 Total Pages :707 pages Book Rating :4.3/5 (872 download)
Book Synopsis Fuel Cells by : Supramaniam Srinivasan
Download or read book Fuel Cells written by Supramaniam Srinivasan and published by Springer Science & Business Media. This book was released on 2006-05-05 with total page 707 pages. Available in PDF, EPUB and Kindle. Book excerpt: This concise sourcebook of the electrochemical, engineering and economic principles involved in the development and commercialization of fuel cells offers a thorough review of applications and techno-economic assessment of fuel cell technologies, plus in-depth discussion of conventional and novel approaches for generating energy. Parts I and II explain basic and applied electrochemistry relevant to an understanding of fuel cells. Part III covers engineering and technology aspects. The book is useful for undergraduate and graduate students and scientists interested in fuel cells. Unlike any other current book on fuel cells, each chapter includes problems based on the discussions in the text.
Author :Lyonnaise des eaux-Dumez (Firm) Publisher :American Water Works Association ISBN 13 :0070015597 Total Pages :738 pages Book Rating :4.0/5 (7 download)
Book Synopsis Water Treatment Membrane Processes by : Lyonnaise des eaux-Dumez (Firm)
Download or read book Water Treatment Membrane Processes written by Lyonnaise des eaux-Dumez (Firm) and published by American Water Works Association. This book was released on 1996 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: With global demand for water in the 20th century expected to increase ten-fold, this work focuses on the membrane filtration issues for drinking water.
Book Synopsis Electron Spin Resonance (ESR) Applications in Organic and Bioorganic Materials by : B. Catoire
Download or read book Electron Spin Resonance (ESR) Applications in Organic and Bioorganic Materials written by B. Catoire and published by Springer. This book was released on 1992-02-27 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Publication partially sponsored by MRT (French Ministry of Research and Technology."
Book Synopsis The Chemistry of Synthetic Dyes by : Krishnasami Venkataraman
Download or read book The Chemistry of Synthetic Dyes written by Krishnasami Venkataraman and published by . This book was released on 1952 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 3- without series statement.
Book Synopsis Preparative Layer Chromatography by : Teresa Kowalska
Download or read book Preparative Layer Chromatography written by Teresa Kowalska and published by CRC Press. This book was released on 2006-02-03 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preparative Layer Chromatography explains how this method is used for separating large quantities of mixtures containing a wide variety of important compounds. It offers a broad review of preparative layer chromatography (PLC) applications and adaptable working procedures for microseparations involving organic, inorganic, and organometallic compoun
Book Synopsis Nanomaterials For Energy Conversion And Storage by : Dunwei Wang
Download or read book Nanomaterials For Energy Conversion And Storage written by Dunwei Wang and published by World Scientific. This book was released on 2017-11-10 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of nanomaterials in energy conversion and storage represents an opportunity to improve the performance, density and ease of transportation in renewable resources. This book looks at the most recent research on the topic, with particular focus on artificial photosynthesis and lithium-ion batteries as the most promising technologies to date. Research on the broad subject of energy conversion and storage calls for expertise from a wide range of backgrounds, from the most fundamental perspectives of the key catalytic processes at the molecular level to device scale engineering and optimization. Although the nature of the processes dictates that electrochemistry is a primary characterization tool, due attention is given to advanced techniques such as synchrotron studies in operando. These studies look at the gap between the performance of current technology and what is needed for the future, for example how to improve on the lithium-ion battery and to go beyond its capabilities.Suitable for students and practitioners in the chemical, electrochemical, and environmental sciences, Nanomaterials for Energy Conversion and Storage provides the information needed to find scalable, economically viable and safe solutions for sustainable energy.
Book Synopsis Scanning Probe Microscopy by : Ernst Meyer
Download or read book Scanning Probe Microscopy written by Ernst Meyer and published by Springer Nature. This book was released on 2021-05-31 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by three leading experts in the field, this textbook describes and explains all aspects of the scanning probe microscopy. Emphasis is placed on the experimental design and procedures required to optimize the performance of the various methods. Scanning Probe Microscopy covers not only the physical principles behind scanning probe microscopy but also questions of instrumental designs, basic features of the different imaging modes, and recurring artifacts. The intention is to provide a general textbook for all types of classes that address scanning probe microscopy. Third year undergraduates and beyond should be able to use it for self-study or as textbook to accompany a course on probe microscopy. Furthermore, it will be valuable as reference book in any scanning probe microscopy laboratory. Novel applications and the latest important results are also presented, and the book closes with a look at the future prospects of scanning probe microscopy, also discussing related techniques in nanoscience. Ideally suited as an introduction for graduate students, the book will also serve as a valuable reference for practising researchers developing and using scanning probe techniques.
Book Synopsis Multifunctional Oxide Heterostructures by : Evgeny Y. Tsymbal
Download or read book Multifunctional Oxide Heterostructures written by Evgeny Y. Tsymbal and published by OUP Oxford. This book was released on 2012-08-30 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to the rapidly developing field of oxide thin-films and heterostructures. Oxide materials combined with atomic-scale precision in a heterostructure exhibit an abundance of macroscopic physical properties involving the strong coupling between the electronic, spin, and structural degrees of freedom, and the interplay between magnetism, ferroelectricity, and conductivity. Recent advances in thin-film deposition and characterization techniques made possible the experimental realization of such oxide heterostructures, promising novel functionalities and device concepts. The book consists of chapters on some of the key innovations in the field over recent years, including strongly correlated oxide heterostructures, magnetoelectric coupling and multiferroic materials, thermoelectric phenomena, and two-dimensional electron gases at oxide interfaces. The book covers the core principles, describes experimental approaches to fabricate and characterize oxide heterostructures, demonstrates new functional properties of these materials, and provides an overview of novel applications.
Book Synopsis Some industrial chemicals and dyestuffs : this publication represents the views and expert opinions of an IARC working group on the evaluation of the carcinogenic risk of chemicals to humans which met in Lyon, 13-20 October 1981 by :
Download or read book Some industrial chemicals and dyestuffs : this publication represents the views and expert opinions of an IARC working group on the evaluation of the carcinogenic risk of chemicals to humans which met in Lyon, 13-20 October 1981 written by and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Organic Solid-State Lasers by : Sébastien Forget
Download or read book Organic Solid-State Lasers written by Sébastien Forget and published by Springer. This book was released on 2013-07-03 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic lasers are broadly tunable coherent sources, potentially compact, convenient and manufactured at low-costs. Appeared in the mid 60’s as solid-state alternatives for liquid dye lasers, they recently gained a new dimension after the demonstration of organic semiconductor lasers in the 90's. More recently, new perspectives appeared at the nanoscale, with organic polariton and surface plasmon lasers. After a brief reminder to laser physics, a first chapter exposes what makes organic solid-state organic lasers specific. The laser architectures used in organic lasers are then reviewed, with a state-of-the-art review of the performances of devices with regard to output power, threshold, lifetime, beam quality etc. A survey of the recent trends in the field is given, highlighting the latest developments with a special focus on the challenges remaining for achieving direct electrical pumping of organic semiconductor lasers. A last chapter covers the applications of organic solid-state lasers.
